Messages in this thread | | | Date | Sat, 13 Sep 2003 20:37:47 +0100 | From | Jamie Lokier <> | Subject | Re: [lkml] RE: self piping and context switching |
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Alan Cox wrote: > On Sad, 2003-09-13 at 03:56, Iker wrote: > > More specifically, I was wondering if the write to the pipe or the call back > > into poll involved anything that might prompt the scheduler to replace the > > thread in this scenario. > > Unless it happens to cause page faults or fill up the pipe nothing in > paticular. Sending a message to yourself down a pipe is pretty standard > in event based programs as a way of turning a signal from asynchronous > event and thus nuisance to handle into a message.
This "pretty standard" method is the reason Netscape 4.07 hangs on computers which are too fast: It writes too many events to a pipe before reading from the pipe, and the pipe fills.
Of course that is a programming error. Just a reminder to be careful :)
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